SrTiO₃  Bi-Crystal substrate is made of two pieces oriented SrTiO3 crystal.  One grain boundary  is formed under high temperature and pressure.  It is excellent to make High Tc syperconduct SQUID

24^o Bi-STO Substrate Specifications

• Substrate Size:                   10x10x 0.5mm  +/-0.05mm
• Face Orientation:                        (100) +/- 0.3^o
• Edge orietation Indication:       <001> +/-0.5^o
• Crystal Boundary:                     10^o ( +/-0.5^o ) 
• Polish:                               One side EPI polished by CMP .
• Surface Roughness:                   < 5 A by AFM
• Pack:         Packed in 100 grade plastic bag under 1000 class clean room.

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